Greywacke and Trachyte Definition

Definition of Greywacke and Trachyte

The general Greywacke and Trachyte definition can be stated as: Greywacke is defined as a dark coarse-grained sandstone rock which contains more than 15 per cent clay. On the other hand, Trachyte is a grey fine-grained volcanic rock which mainly consists of alkali feldspar. Along with definition of Greywacke and Trachyte, get to know about Properties of Greywacke and Trachyte. Get to know more information about Greywacke and Trachyte origin and discoverer, etymology and class.

History of Greywacke and Trachyte

The history of Greywacke and Trachyte gives information about where the rock was found and who was its discoverer. Almost each and every aspect of Earth's history is recorded in rocks be it the volcanoes which were erupted or the plants, animals and organisms which are now extinct, as rocks are present from millions of years.

Greywacke and Trachyte Origin and Discoverer

Greywacke and Trachyte definition gives us a brief idea about the two rocks. In some cases, the definition also gives summary about the Formation of Greywacke and Trachyte. In this section, you will know about Greywacke and Trachyte Origin and Discoverer. Origin of Greywacke and Trachyte are Unknown. It is interesting to know the name of Greywacke and Trachyte discoverer. The Discoverer of Greywacke is Unknown and the discoverer of Trachyte is Alexandre Brongniart and René Just Haüy.

Etymology of Greywacke and Trachyte

Along with Greywacke and Trachyte definition, know more about the etymology of Greywacke and Trachyte. Etymology of Greywacke and Trachyte gives information about origin and formation of a particular rock. Know more about Formation of Greywacke and Formation of Trachyte. The etymology of Greywacke is From German Grauwacke, from grau grey + wacke while that of Trachyte is From German Grauwacke, from grau grey + wacke. The process of formation of rocks defines the class of rock. All the rocks in a class are formed by similar processes. Greywacke belongs to Sedimentary Rocks while Trachyte belongs to Igneous Rocks. The sub-class, group and other categories of Greywacke and Trachyte are listed below.

For Greywacke,

• Sub-class: Durable Rock and Hard Rock
• Group: Not applicable
• Other Categories: Fine grained rock and Opaque rock

For Trachyte,

• Sub-class: Durable Rock and Medium Hardness Rock
• Group: Volcanic
• Other Categories: Fine grained rock and Opaque rock